dubos

noun

1. Re·né Jules [ruh–ney joolz; French ruh–ney zhyl] /rəˈneɪ dʒulz; French rəˈneɪ ʒül/, 1901–82, U.S. bacteriologist, born in France: early advocate of ecological concern.

1. French-born American bacteriologist noted for his research on natural antibiotics, tuberculosis, and environmental factors in disease.

1. French-born American bacteriologist noted for his research on natural antibiotics, tuberculosis, and environmental factors in disease. In 1939 he discovered tyrothricin, the first commercially produced antibiotic.